Developed and maintained Corporation-Host, a high-complexity corporate debit card management platform enabling enterprise clients to issue large-scale card fleets tied to centralised multi-million dollar deposits.
Architected and built Corporation-Gateway from scratch — a production-grade Spring Boot microservice acting as the secure B2B entry point for external clients and developers.
Implemented API gateway routing, Authentication/Authorization filters, and granular RBAC for multi-tenant enterprise access.
Integrated distributed tracing via Micrometer Tracing for full observability, latency tracking, and clean dependency isolation across the microservices mesh.
Contributed to Prepaid-Host — core platform handling business logic, ledger posting, and transaction compliance for gift card ecosystems.
Built Prepaid-Gateway, a secure microservice gateway standardising upstream client consumption of prepaid banking APIs.
